JP2003155818A - Anchor mounting structure for interior/exterior finishing slate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anchor mounting structure for an interior/exterior finishing slate, which can secure an anchor member onto a rear surface of the interior/exterior finishing slate according to an easy working method and simple procedures, has structural stability, and is high in reliability. SOLUTION: According to the anchor mounting structure, an anchor hole is formed into an underreamed shape in the rear surface of the interior/exterior finishing slate, and the anchor member having an outer diameter at its tip slightly smaller than an inlet diameter of the anchor hole and including a taper portion that becomes thicker toward its tip, allows its taper portion to be concentrically inserted into the anchor hole. Then, a filler is compactly charged into a gap between the taper portion and the anchor hole, and when the filler is hardened, the anchor member is fixed to the interior/exterior finishing slate in one body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interior / exterior stone plate formed by cutting a natural stone material into a thin plate having a constant thickness and forming the plate.
Or, an artificial pottery board similar to this (hereinafter collectively referred to as "interior / posterior stone board") is used as a finishing treatment by attaching and installing it on the wall surface inside / outside the building. Belonging to the technical field of the structure to be attached and fixed to.

[0002]

2. Description of the Related Art Conventionally, a stone-clad construction method has been widely practiced, in which interior and exterior stone plates are used to finish the interior and exterior walls of a building. As the stone-clad construction method, (1) a dry construction method in which the anchor material prepared in advance on the interior and exterior stone plates is fastened and fixed to the wall surface or the building of the building, or (2) the anchor material and an adhesive such as backfill mortar are used. Wet method of fixing to the wall surface of the building or the structure,
Is known. Whichever construction method is used, it is essential to prepare an anchor material in advance on the back surface of the interior and exterior stone plate. However, it is not possible to prepare metal anchor materials (anchor bolts, etc.) on stone plates that are completely different in material with sufficient stable strength as a building material (separately fixed) because the stone plate is a thin plate structure It is considered to be a rather difficult technique because it is a material that is easy (brittle).

The following inventions, for example, are known as conventional techniques in this respect. (A) Japanese Unexamined Patent Publication No. 2000-257236 discloses an engagement in which a stone plate having wedge-shaped engaging projections integrally formed on the back surface is machined in a jointed manner and is provided on a wall surface of a building or the like. There is disclosed a stone plate mounting structure which is fitted into a recess and mounted on a wall surface inside or outside a building. (B) In Japanese Unexamined Patent Publication No. 2000-266017, a decorative plate stop member having an engaging tongue that engages with a slit-shaped engaging hole formed on the back surface of a decorative stone plate and a wall surface of a building is clasped. A structure for attaching a stone plate to a wall surface inside or outside a building is disclosed.

[0004]

In the stone plate mounting structure of the above (a), attention is paid to the constitution in which the stone plates are strongly fixed to the wall surface by the coupling force by the engaging projections and the mutual coupling force between the stone plates by the interlocking. Although it is possible, an engaging protrusion must be formed on the back surface of each stone plate. Not only that, but also the wall surface needs to be processed or formed with a complicated shape, which causes a problem that the work time and cost are increased and the work efficiency in construction is poor.

On the other hand, the mounting structure of the above (b) can be mounted by simply inserting the engaging tongue of the decorative plate stopping member into the slit provided in the stone plate and the wall surface, so that the construction is easy and the cost can be reduced. You can pay attention. However, the decorative plate stopping member is a clasp provided with hook-shaped engaging tongues that are obliquely protruded in the front and rear by stamping and forming a steel plate, and the stone plate is simply hooked on the engaging tongues of the stopping member. However, the mounting structure that is simply attached to the wall surface has a problem that the fixing force of the stone plate is weak.

The object of the present invention is to make it possible to firmly prepare an anchor material for the back surface of an interior / exterior stone plate, which is indispensable for a stone-clad construction method, by a simple processing method and work, and to secure its structural stability and certainty or reliability. It is to provide a high anchor structure for attaching an interior / exterior stone plate.

[0007]

As a means for solving the above-mentioned problems, an anchor material mounting structure for an interior / exterior stone plate according to the invention as set forth in claim 1 is to mount the interior / exterior stone plate to wall surfaces inside / outside a building. In the attachment structure of the anchor material to be installed, an anchor hole is formed on the back surface of the interior and exterior stone plate in a bottomed shape, the outer diameter of the tip is slightly smaller than the entrance diameter of the anchor hole, and a tapered tapered part An anchor material having a taper-shaped portion is inserted into the anchor hole in a substantially concentric arrangement, the filler is densely packed in a gap between the taper-shaped portion and the anchor hole, and the anchor material is hardened by curing the filler. It is characterized by being integrally fixed to the interior and exterior stone plates.

According to a second aspect of the present invention, there is provided an anchor material mounting structure for an interior / exterior stone plate in which the interior / exterior stone plate is installed on a wall surface inside / outside a building.
An anchor hole is formed on the back surface of the inner and outer stone plate in a bottomed shape, and the anchor material has a tapered shape portion whose outer diameter at the tip is slightly smaller than the inlet diameter of the anchor hole and has a tapered shape portion. Is inserted into the hole for anchor in a substantially concentric arrangement, the outer diameter is larger than the inlet diameter of the hole for anchor, the inner diameter is larger than the minimum diameter of the tapered portion of the anchor material, and the C-shaped ring having elasticity is used. It is installed in the gap between the taper-shaped part and the anchor hole, and the filler is densely packed in the gap between the taper-shaped part and the anchor hole. It is characterized by being integrally fixed to.

According to a third aspect of the present invention, in the anchor material mounting structure for an interior / exterior stone plate according to the first or second aspect,
The anchor material is an anchor bolt with a thread cut on the shaft part except the tapered shape part, a washer is applied to the back surface of the interior and exterior stone plate, and a nut screwed into this anchor bolt is tightened for firm fixation. It is being done.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of an anchor material mounting structure for an interior / exterior stone plate according to the present invention will be described below with reference to the drawings.

First, FIG. 1 shows a preparatory step immediately before drilling for making a prepared hole for an anchor hole with a drill 2 (stone grindstone) on the back surface of an interior / exterior stone plate 1.

In FIG. 2, after the pilot hole 3 is drilled by the drill 2, the pilot hole 3 is drilled by the drill 4 for expanding the bottom (bottom expanding grindstone).
It shows a preparatory stage immediately before processing to finish the anchor hole 5 having a flat-bottomed bottomed hole shape (tapered hole shape) whose inner diameter increases in the depth direction.

FIG. 3 shows a work procedure diagram at the stage of finishing an anchor hole 5 having a flat-bottom expanded hole shape (tapered hole shape) with the above-described expanded-bottom drill 4 (bottom expanded stone).

The bottom drill 4 has anchor holes 5
What has a cutting edge shape corresponding to the taper angle of the expanded bottom shape (taper shape) to be finished as is used. As a finishing method, for example, the bottom expanding drill 4 is rotated while being rotated (so-called eccentric rotation) to finish into a diameter and a bottom expanded shape suitable for anchoring an anchor material described later. The depth of the anchor hole 5 is about 10 mm to 25 mm with respect to the thickness of the interior / exterior stone plate 1 (usually 20 mm to 35 mm).

Next, in FIG. 4, the outer diameter of the tip into the anchor hole 5 drilled by the above-mentioned procedure is slightly smaller than the entrance diameter of the anchor hole 5 (small diameter so that it can be inserted).
And the anchor material 6 having the tapered shape portion 6a
The taper-shaped portion 6a is inserted in a substantially concentric arrangement, the filler 7 is densely packed in the gap between the taper-shaped portion 6a and the anchor hole 5, and the anchor material 6 is hardened by the hardening of the filler 7 to form the interior and exterior stone board 1 The mounting structure is integrally and firmly fixed to the back surface of the above (above, the invention according to claim 1).

In other words, the hardened filling material 7 intervenes like a hard wedge to exert a retaining effect on the tapered portion 6a of the anchor material 6. Therefore, as the filler 7, an adhesive mortar excellent in structural strength and durability as well as water resistance and weather resistance is preferably used.

The fracture surface of the interior / exterior stone plate 1 that is assumed when the pulling force T acts on the anchor material 6 is considered to be a cone shape as shown by the dotted line 8. Therefore, the expanded shape of the anchor hole 5 and the taper angle of each of the tapered portions 6a of the anchor material 6 are compared with the magnitude of the resistance force of the anchor material 6 against the pull-out force T and the angle at which the breakage 8 is unlikely to occur. It is important to think carefully and design and implement properly. By the way, as shown in FIG. 4, a bottomed shape (tapered shape) in which a parallel portion 5a is left in the vicinity of the back surface of the stone material.
It is also effective to prevent the breakage.

As the anchor material 6, the following anchor bolt 6A is suitable for carrying out the dry construction method described in the above-mentioned prior art (1). Further, in carrying out the wet method of the same (2), it is preferable to use the hook-shaped anchor material 9 as shown by the dotted line in FIG. Any anchor material can be attached in exactly the same way. That is, the anchor material 6 is applicable regardless of its shape, structure, material, etc., as long as it has the above-mentioned tapered shape portion 6a.

FIG. 5 shows, as an embodiment of the present invention, a mounting structure of an anchor bolt 6A having a tapered head portion 6a as a flat head and a shaft portion excluding the taper portion 6a being threaded. 5, the shape of the anchor hole 5 is slightly different from that of FIG. 4, and the parallel portion 5a of FIG. 4 is not left, and the anchor hole 5 is formed as a bottomed hole with a straight taper from the bottom of the hole to the back surface of the stone plate. Shows an example.

FIG. 6 shows another embodiment of the present invention. As shown in FIG. 5, a flat head anchor bolt 6A with a screw thread is fixed to the shaft portion except the tapered portion 6a by a filler 7. In addition, a washer 10 applied to the back surface of the interior / exterior stone plate 1 is tightened with a nut 11 screwed into the anchor bolt 6A to further firmly fix the mounting structure. Invention described in 3). This embodiment shows a mounting structure in which the anchor bolt 6A is not only strong against pull-out force but also effectively resists shearing force F (and bending force).

Next, FIGS. 7 and 8 show an anchor mounting structure according to the same structural principle as that of the above-mentioned embodiment.
It shows an embodiment in which the shaped ring 12 is used as a stopper.

That is, the anchor hole 5 is formed on the back surface of the interior / exterior stone plate 1 in an expanded bottom shape, and the tapered outer diameter of the tip is slightly smaller than the entrance diameter of the anchor hole 5 to form a tapered tapered portion 6a. The anchor material 6 having the tapered shape portion 6
It is common with the above-described embodiment up to the point that a is inserted into the anchor hole 5 in a substantially concentric arrangement.

The feature of this embodiment is that the outer diameter is larger than the entrance diameter of the anchor hole 5 and the inner diameter is larger than the minimum diameter of the tapered portion 6a of the anchor material 6 (the shaft diameter of the anchor material 6) and is elastic. The C-shaped ring 12 having the above is passed through the anchor material 6, and the C-shaped ring 12 is strongly reduced in diameter by using a tool (not shown) so that the C-shaped ring 12 can be inserted into the anchor hole 5. 5 is to be installed in the gap. Inserted into anchor hole 5 to release the reducing force C
The shape ring 12 expands to its original shape due to its elasticity, and
As described above, the taper-shaped portion 6a is stopped and interposed between the tapered wall 6a and the hole wall. Therefore, for the time being, the effect of preventing the anchor material 6 from coming off is sufficiently exerted even if it remains as it is.

Thereafter, similarly to the above-described embodiment, the filler 7 is densely packed in the gap between the tapered portion 6a and the anchor hole 5, and the anchor 7 is cured into a C-shaped ring by hardening the filler 7. It is integrally fixed to the interior / exterior stone plate 1 together with 12 (the invention according to claim 2). C-shaped ring 1
Since a cut portion forms a gap in 2, the filling of the filling material 7 is not hindered. If necessary, the C-shaped ring 12 may be provided with a filling hole.

According to the mounting structure of this embodiment, even if the filler 7 is melted by a fire, or the potency of the filler 7 is reduced or disappears due to temperature change or deterioration over time, the function of the C-shaped ring is increased. As a result, there is no concern that the anchor material 6 will come off accidentally, and it is possible to contribute to the implementation of a highly reliable and safe stone-clad construction method.

[0026]

According to the anchor material mounting structure for an interior / exterior stone plate according to the invention described in claims 1 to 3, the anchor material on the back surface of the interior / exterior stone plate, which is indispensable for the stone lining method,
It can be firmly prepared by simple processing method and work. Moreover, the structural stability, reliability, and reliability of the anchor material are high, so that regardless of whether it is a dry type or a wet type, the stone piling method can be performed easily with high workability and high reliability and quality. This also contributes to shortening the construction period and reducing costs.

[Brief description of drawings]

FIG. 1 is a front view showing a procedure immediately before processing for making a prepared hole in an interior / exterior stone plate.

FIG. 2 is an explanatory view of a procedure just before finishing a prepared hole of a stone plate into an expanded bottom shape.

FIG. 3 is a cross-sectional view showing a stage in which the prepared hole of the stone plate is finished to have an expanded bottom shape.

FIG. 4 is a cross-sectional view showing a structure in which an anchor material is attached to an anchor hole of a stone plate.

FIG. 5 is a sectional view showing an attachment structure of an anchor bolt.

FIG. 6 is a cross-sectional view showing a mounting structure in which anchor bolts are fixed with nuts.

FIG. 7 is a cross-sectional view showing a procedure just before inserting a C-shaped ring.

FIG. 8 is a cross-sectional view showing a mounting structure using a C-shaped ring.

[Explanation of symbols]

1 Interior and exterior stone plates 5 anchor holes 6a Tapered part 6 anchor material 7 Filling material 6A anchor bolt 10 washers 11 nuts 12 C type ring

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Toichi Aikawa             5-16-22 Roppongi, Minato-ku, Tokyo Stock market             Company's Diston Space (72) Inventor Kunpei Unhei             5-16-22 Roppongi, Minato-ku, Tokyo Stock market             Company's Diston Space F-term (reference) 2E110 AA42 AA70 AB04 AB22 AB23                       BA12 BC07 GA33W GB13W

Claims (3)

[Claims] 1. An anchor material mounting structure for installing an interior / exterior stone plate on a wall surface inside / outside a building, wherein an anchor hole is formed on the back surface of the interior / exterior stone plate in a bottomed shape, and the outer diameter of the tip is An anchor material having a tapered shape part slightly smaller than the entrance diameter of the anchor hole is inserted into the anchor hole in a substantially concentric manner and the gap between the tapered part and the anchor hole is filled. An anchor material attachment structure for an interior / exterior stone plate, wherein the material is densely packed and the anchor material is integrally fixed to the interior / exterior stone plate by hardening of the filling material. 2. An anchor material mounting structure for installing an interior / exterior stone plate on a wall surface inside / outside a building, wherein an anchor hole is formed on the back surface of the interior / exterior stone plate in a bottomed shape, and the outer diameter of the tip is An anchor material having a tapered shape portion slightly smaller than the entrance diameter of the anchor hole is inserted into the anchor hole in a substantially concentric arrangement, and the outer diameter is the entrance diameter of the anchor hole. A C-shaped ring, which is larger and has an elasticity larger than the minimum diameter of the taper-shaped part of the anchor material, is passed through the anchor material and installed in the gap between the taper-shaped part and the anchor hole. The filler is densely packed in the gap with the hole, and the anchor material is integrally fixed to the interior and exterior stone plates by curing of the filler,
Anchor material attachment structure for interior and exterior stone plates. 3. The anchor material is an anchor bolt whose thread is cut on a shaft portion excluding a tapered shape portion, a washer is applied to the back surface of the interior and exterior stone plate, and a nut screwed into the anchor bolt is tightened. The anchor material mounting structure for an interior / exterior stone plate according to claim 1 or 2, wherein the structure is firmly fixed.